A report filed by the alliance relies on bogus science such as a study by climate-change skeptic S. Stanley Young that says “most of the hundreds of papers on the relationship between air quality and mortality have serious statistical problems.”

The Obama standards would regulate emissions of greenhouse gases and require automakers to manufacture cars and light-duty trucks that average 54.5 miles a gallon by 2025. Current standards require American-made cars, SUVs and light trucks to meet a combined average of at least 35 miles a gallon by 2020.